This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to drill through granite 
Make certain you really, really, really need to drill a hole where you're thinking about drilling one. 
Consider other alternatives before you start putting holes in your granite, especially when you're working with something as expensive as a granite countertop. 
Determine the ideal hole size your application requires.

pick from the following.
[1]. The best sized hole size will vary depending on the size of the granite countertop. A diameter of 6 inches will allow you to drill around 12 feet (3.8 m), but a diameter of 34 inches is preferable to 36 inches..
[2]. Quartz countertops are very similar in size to granite, with a limit of. In general, you should drill a hole between two and four inches wide, with the goal of drilling a hole three inches deep and one twice the width of your countertop..
[3]. Mark the area where you plan to drill. For small diameter holes, you can use a small dot..
[4]. The size of your granite will affect how accurate your measurement will be. For instance, if you want to drill a hole for a marble countertop, then you'll need to cut a large hole about an inch from the edge of the granite..
The answer is:
[3].